{"id":13592,"date":"2025-05-05T14:20:37","date_gmt":"2025-05-05T22:20:37","guid":{"rendered":"https:\/\/live-cometml.pantheonsite.io\/?page_id=13592"},"modified":"2025-06-12T17:11:05","modified_gmt":"2025-06-12T17:11:05","slug":"paul-iusztin","status":"publish","type":"page","link":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/","title":{"rendered":"Paul Iusztin"},"content":{"rendered":"\n<div class=\"wp-block-cover alignfull has-parallax\" style=\"margin-bottom:var(--wp--preset--spacing--100);padding-top:var(--wp--preset--spacing--160);padding-bottom:var(--wp--preset--spacing--100)\"><div class=\"wp-block-cover__image-background wp-image-16488 has-parallax\" style=\"background-position:50% 50%;background-image:url(https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/convergence-hero-background-scaled.jpg)\"><\/div><span aria-hidden=\"true\" class=\"wp-block-cover__background has-background-dim-0 has-background-dim\" style=\"background-color:#4a1e26\"><\/span><div class=\"wp-block-cover__inner-container is-layout-constrained wp-block-cover-is-layout-constrained\">\n<div class=\"wp-block-group alignwide is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-12dd3699 wp-block-group-is-layout-constrained\">\n<p class=\"has-background-color has-text-color has-link-color wp-elements-5a2024186819c231e941dc556eed5a54\"><a href=\"https:\/\/www.comet.com\/site\/convergence\/\">\u2190 BACK TO EVENT PAGE<\/a><\/p>\n\n\n\n<div class=\"wp-block-columns alignwide is-layout-flex wp-container-core-columns-is-layout-b61b2f12 wp-block-columns-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:275px\">\n<figure class=\"wp-block-image size-large is-resized is-style-opik is-style-opik--1\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846-1024x1024.jpg\" alt=\"Paul Iusztin\" class=\"wp-image-16530\" style=\"aspect-ratio:1;object-fit:cover;width:275px\" srcset=\"https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846-1024x1024.jpg 1024w, https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846-300x300.jpg 300w, https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846-150x150.jpg 150w, https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846-768x768.jpg 768w, https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846-1536x1536.jpg 1536w, https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/02\/Paul-0005-1-scaled-e1746469044846.jpg 1707w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<div class=\"wp-block-group is-content-justification-left is-layout-constrained wp-container-core-group-is-layout-a0d49d46 wp-block-group-is-layout-constrained\"><h1 style=\"font-style:normal;font-weight:400;\" class=\"wp-block-post-title has-display-m-font-size\">Paul Iusztin<\/h1>\n\n\n<h2 class=\"wp-block-heading has-body-l-font-size\" id=\"h-data-science-educator-and-vanishing-gradients-host\" style=\"font-style:normal;font-weight:400\">Senior AI Engineer \/ Founder at Decoding ML<\/h2>\n<\/div>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-opik is-style-opik--2\"\/>\n<\/div>\n\n\n\n<p>Paul Iusztin is a senior AI\/ML engineer with over seven years of experience building GenAI, Computer Vision and MLOps solutions. His latest contribution was at Metaphysic, where he was one of the core AI engineers who took large GPU-heavy models to production. He previously worked at CoreAI, Everseen, and Continental. In his last university year, he also tried building his first tech company, Dorel. He is the co-author of the LLM Engineer\u2019s Handbook, a bestseller on Amazon, which presents a hands-on framework for building LLM applications. Paul is the Founder of Decoding ML, an educational channel on production-grade AI that provides code, posts, articles, and courses, inspiring others to build real-world AI systems. Paul\u2019s teaching career started by teaching the foundations of AI laboratory at the Politehnica University of Timisoara.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/div>\n\n\n\n<p class=\"has-text-align-center has-custom-opik-red-color has-text-color has-link-color wp-elements-6a0f093506b739352a934c628ca14f2e\">May 14th, 12:00 \u2013 1:00PM ET<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-text-align-center\" id=\"h-evaluation-driven-development-building-reliable-ai-systems\" style=\"margin-top:var(--wp--preset--spacing--8)\">LLM &amp; RAG Evaluation Playbook for Production Apps<\/h2>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity is-style-opik is-style-opik--3\" style=\"margin-top:var(--wp--preset--spacing--40);margin-bottom:var(--wp--preset--spacing--40)\"\/>\n\n\n\n<p class=\"has-text-align-center\">Building proof-of-concept LLM\/RAG apps is easy\u2014we know that. The next step, which consumes the most time and is the most challenging, is bringing the app to a production-ready level. You must increase accuracy, reduce latency and costs, and create reproducible results.<br>You must start optimizing your LLM and RAG layers to ensure compliance with all these requirements. You must begin digging into open-source LLMs, fine-tuning LLMs for your specialized tasks, optimizing them for inference, and so on.<br><br>However, before optimizing anything, you must first determine what to optimize. Thus, you must quantify your system\u2019s key metrics (e.g., latency, costs, accuracy, recall, hallucinations, etc.).<br><br>Thus, as developing AI applications is an iterative process, the first critical step to getting to production is learning how to evaluate and monitor your LLM\/RAG applications. The best strategy is to build something simple end-to-end, attach an evaluation layer on top of it, and then quickly iterate in the right direction by clearly indicating what needs improvement.<br><br>Thus, this workshop will focus on evaluating LLM\/RAG apps. We will take a simple, predefined agentic RAG system built in LangGraph and understand how to evaluate and monitor it.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-d234f690 wp-block-buttons-is-layout-flex\" style=\"margin-top:var(--wp--preset--spacing--50);margin-bottom:var(--wp--preset--spacing--50)\">\n<div class=\"wp-block-button is-style-opik is-style-opik--4\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/www.comet.com\/site\/events\/convergence\/#register\">Register now<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":12738,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"convergence","meta":{"customer_name":"","customer_description":"","customer_industry":"","customer_technologies":"","customer_logo":"","footnotes":""},"coauthors":[126],"class_list":["post-13592","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Paul Iusztin - Comet<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Paul Iusztin\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/\" \/>\n<meta property=\"og:site_name\" content=\"Comet\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/cometdotml\" \/>\n<meta property=\"article:modified_time\" content=\"2025-06-12T17:11:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/10\/Share-image-3.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1800\" \/>\n\t<meta property=\"og:image:height\" content=\"945\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@Cometml\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n\t<meta name=\"twitter:label2\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data2\" content=\"engineering@atre.net\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Paul Iusztin - Comet","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/","og_locale":"en_US","og_type":"article","og_title":"Paul Iusztin","og_url":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/","og_site_name":"Comet","article_publisher":"https:\/\/www.facebook.com\/cometdotml","article_modified_time":"2025-06-12T17:11:05+00:00","og_image":[{"width":1800,"height":945,"url":"https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/10\/Share-image-3.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_site":"@Cometml","twitter_misc":{"Est. reading time":"3 minutes","Written by":"engineering@atre.net"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/","url":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/","name":"Paul Iusztin - Comet","isPartOf":{"@id":"https:\/\/www.comet.com\/site\/#website"},"datePublished":"2025-05-05T22:20:37+00:00","dateModified":"2025-06-12T17:11:05+00:00","breadcrumb":{"@id":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.comet.com\/site\/convergence\/paul-iusztin\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.comet.com\/site\/"},{"@type":"ListItem","position":2,"name":"Convergence 2025","item":"https:\/\/www.comet.com\/site\/convergence\/"},{"@type":"ListItem","position":3,"name":"Paul Iusztin"}]},{"@type":"WebSite","@id":"https:\/\/www.comet.com\/site\/#website","url":"https:\/\/www.comet.com\/site\/","name":"Comet","description":"Build Better Models Faster","publisher":{"@id":"https:\/\/www.comet.com\/site\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.comet.com\/site\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.comet.com\/site\/#organization","name":"Comet ML, Inc.","alternateName":"Comet","url":"https:\/\/www.comet.com\/site\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.comet.com\/site\/#\/schema\/logo\/image\/","url":"https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/01\/logo_comet_square.png","contentUrl":"https:\/\/www.comet.com\/site\/wp-content\/uploads\/2025\/01\/logo_comet_square.png","width":310,"height":310,"caption":"Comet ML, Inc."},"image":{"@id":"https:\/\/www.comet.com\/site\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/cometdotml","https:\/\/x.com\/Cometml","https:\/\/www.youtube.com\/channel\/UCmN63HKvfXSCS-UwVwmK8Hw"]}]}},"_links":{"self":[{"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/pages\/13592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/comments?post=13592"}],"version-history":[{"count":1,"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/pages\/13592\/revisions"}],"predecessor-version":[{"id":16633,"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/pages\/13592\/revisions\/16633"}],"up":[{"embeddable":true,"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/pages\/12738"}],"wp:attachment":[{"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/media?parent=13592"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.comet.com\/site\/wp-json\/wp\/v2\/coauthors?post=13592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}